ID   RL21_ALKCK              Reviewed;         102 AA.
AC   Q5WES3;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   03-AUG-2022, entry version 93.
DE   RecName: Full=50S ribosomal protein L21 {ECO:0000255|HAMAP-Rule:MF_01363};
GN   Name=rplU {ECO:0000255|HAMAP-Rule:MF_01363}; OrderedLocusNames=ABC2602;
OS   Alkalihalobacillus clausii (strain KSM-K16) (Bacillus clausii).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Alkalihalobacillus.
OX   NCBI_TaxID=66692;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=KSM-K16;
RA   Takaki Y., Kageyama Y., Shimamura S., Suzuki H., Nishi S., Hatada Y.,
RA   Kawai S., Ito S., Horikoshi K.;
RT   "The complete genome sequence of the alkaliphilic Bacillus clausii KSM-
RT   K16.";
RL   Submitted (OCT-2003) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: This protein binds to 23S rRNA in the presence of protein
CC       L20. {ECO:0000255|HAMAP-Rule:MF_01363}.
CC   -!- SUBUNIT: Part of the 50S ribosomal subunit. Contacts protein L20.
CC       {ECO:0000255|HAMAP-Rule:MF_01363}.
CC   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bL21 family.
CC       {ECO:0000255|HAMAP-Rule:MF_01363}.
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DR   EMBL; AP006627; BAD65137.1; -; Genomic_DNA.
DR   RefSeq; WP_011247445.1; NC_006582.1.
DR   AlphaFoldDB; Q5WES3; -.
DR   SMR; Q5WES3; -.
DR   STRING; 66692.ABC2602; -.
DR   EnsemblBacteria; BAD65137; BAD65137; ABC2602.
DR   GeneID; 61574123; -.
DR   KEGG; bcl:ABC2602; -.
DR   eggNOG; COG0261; Bacteria.
DR   HOGENOM; CLU_061463_3_2_9; -.
DR   OMA; HRQEITR; -.
DR   OrthoDB; 1949059at2; -.
DR   Proteomes; UP000001168; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProt.
DR   GO; GO:0005840; C:ribosome; IEA:UniProtKB-KW.
DR   GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003735; F:structural constituent of ribosome; IEA:InterPro.
DR   GO; GO:0006412; P:translation; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_01363; Ribosomal_L21; 1.
DR   InterPro; IPR036164; L21-like_sf.
DR   InterPro; IPR028909; L21p-like.
DR   InterPro; IPR001787; Ribosomal_L21.
DR   InterPro; IPR018258; Ribosomal_L21_CS.
DR   PANTHER; PTHR21349; PTHR21349; 1.
DR   Pfam; PF00829; Ribosomal_L21p; 1.
DR   SUPFAM; SSF141091; SSF141091; 1.
DR   TIGRFAMs; TIGR00061; L21; 1.
DR   PROSITE; PS01169; RIBOSOMAL_L21; 1.
PE   3: Inferred from homology;
KW   Reference proteome; Ribonucleoprotein; Ribosomal protein; RNA-binding;
KW   rRNA-binding.
FT   CHAIN           1..102
FT                   /note="50S ribosomal protein L21"
FT                   /id="PRO_0000269279"
SQ   SEQUENCE   102 AA;  11285 MW;  BCAE74AD35510642 CRC64;
     MYAIIETGGK QIKVEEGQEI YVEKLDAEAG EEVSFDKVLF VGGESAKVGA PFVEGASVTG
     TVEKHGRNKK IIVYKMKAKK NYRRKQGHRQ PYTKVVIGKI NG